

    <div  id="backgroud" style="width:100%;border: none;opacity:0.5;background: url('__STATIC__/admin/img/index.jpg')no-repeat">



    </div>
    
<script>

    $(function () {
        $('#backgroud').css({'height':$(window.screen).attr('height')});
//        console.log($(window.screen).attr('height'));
    });
</script>
